In order to optimize performance for a compute cluster that requires low inter-node latency, which of the
following feature should you use?
A.
Multiple Availability Zones
B.
AWS Direct Connect
C.
EC2 Dedicated Instances
D.
Placement Groups
E.
VPC private subnets
Explanation:
http://aws.amazon.com/ec2/faqs/ (enhanced networking)
D
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D
A placement group is a logical grouping of instances within a single Availability Zone. Using placement groups enables applications to participate in a low-latency, 10 Gigabits per second (Gbps) network.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html
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d
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D
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I agree with the answer. A
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No, how did you get to this conclusion? This is a Compute Cluster and it says Placement group in the Cluster Section.
How did you reach to this conclusion????
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what do u think is the right answer then?
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Lool its placement groups of course.
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Networkmanagers is either a troll or is a reverse-genius who can always post the wrong answer without ever accidentally guessing right.
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Why all of your answers are wrong. This is a serious forum please don’t spoil its purpose.
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Are the questions here the same as on the test?
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D
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obviously D
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D
Placement Groups are logical groupings or clusters of instances in the selected AWS region. Placement groups are specifically used for launching cluster compute instance types. (e.g. cc2.8xlarge)
A placement group is a logical grouping of instances within a single Availability Zone. Using placement groups with supported instance types enables applications to participate in a low-latency, 10 Gigabits per second (Gbps) network. Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both. To provide the lowest latency, and the highest packet-per-second network performance for your placement group, choose an instance type that supports enhanced networking.
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D
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D
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D – Placement Group
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D: because of cluster compute
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